Flames, Hear,and Calories

소개

미국에서 대학교를 다니시는 분 들 중 Chemistry 121 을 수강하시는 분께 추천합니다.
Chemistry 121 lab report 입니다. 어떻게 lab report를 써야하는지 모르시는 분께 지침판이 될 것이라고 생각합니다.
이 레포트의 grade는 A를 받았습니다.
여러분께 많은 도움이 되기를 바랍니다.

목차

1.Purpose
2. procedure and Observation
3. Experimental Measurements and Data
4. Calculations and Data analysis
5.Conclusion

본문내용

Purpose:
The purpose of this lab is to preform specific heat gain and heat loss calculations on different substances using MicroLAB. Also, learn the concepts of calories, specific heat and to compare the energy changes of the different substances.

Procedure & Observation:
The first part of lab is to determine the heat loss and heat gain of ordinary tap water. First MicroLAB was opened and calibrated for the use of two thermistors. The thermistors were calibrated using the Model 103 Thermistor calibration file. A Styrofoam cup was obtained and the mass of 2.582 g dry was recorded from a balance. 30 mL of cold tap water with a small amount of ice was weighed with a mass of 48.014 g, and a temperature of 11.1 °C was recorded with MicroLAB. Next 30 mL of hot tap water was added to a second Styrofoam cup with a mass of 32.706 g and a temperature of 43.326°C. Next a thermistor was added to the cold cup and hot cup and MicroLAB was started recording both the temperature of the cold and hot water at the same time.

참고자료

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